Modular stacking shelf



FIG. 1 is an elevated front perspective view of a modular stacking shelf showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a top elevational view thereof; and,

FIG. 7 is a bottom elevational view thereof.

The broken line showing of an additional shelf is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a modular stacking shelf, as shown and described. 